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[89.176.136.191]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-46c221d9371sm5065849f8f.21.2026.06.24.01.48.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2026 01:48:16 -0700 (PDT) From: Petr Wozniak To: Russell King , Andrew Lunn , Heiner Kallweit Cc: Jakub Kicinski , "David S . Miller" , Eric Dumazet , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, Maxime Chevallier , Bjorn Mork , Aleksander Bajkowski , Marek Behun , Petr Wozniak Subject: [PATCH net v4 0/2] net: phy: sfp/mdio-i2c: defer RollBall probe + fix mii_bus leak Date: Wed, 24 Jun 2026 10:48:12 +0200 Message-ID: <20260624084814.20972-1-petr.wozniak@gmail.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This series resends the RollBall bridge probe deferral (a fix for the regression in commit 8fe125892f40) and adds a related mii_bus leak fix. Patch 1 fixes a pre-existing mii_bus leak in sfp_i2c_mdiobus_destroy() that has been present since the helper was introduced in 2022. Patch 2 introduces a new -ENODEV path that destroys the MDIO bus via sfp_i2c_mdiobus_destroy(), so patch 1 is a prerequisite to avoid leaking the bus on that path. v4: - Retargeted net-next -> net: both patches carry Fixes: tags and 8fe125892f40 is now in mainline. - Patch 1: added Reviewed-by: Maxime Chevallier. - Patch 2: reworked post-probe error handling to drop an over-80-column line and moved two block comment terminators to their own line (checkpatch); set err = 0 after switching to MDIO_I2C_NONE so the SFP state machine does not schedule a redundant 1 s retry. No functional change to the probe logic. v3: - Resend: v2 defer patch was corrupted in transit and failed to apply (netdev/apply); regenerated against current net-next. - Fixed block comment style flagged by checkpatch. No functional change. - Added patch 1/2 (sfp: free mii_bus in sfp_i2c_mdiobus_destroy). v2 (defer): - Generalized scope: regression affects boot-inserted and hotplugged modules where bridge init exceeds 200 ms; Aleksander Bajkowski confirmed FLYPRO SFP-10GT-CS-30M / AQR113C broken when hotplugged. - Corrected state machine description (probe runs in SFP_S_INIT after SFP_S_WAIT) - Jan Hoffmann. - No code changes from v1. v1: initial submission. Petr Wozniak (2): net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy net: phy: mdio-i2c: defer RollBall bridge probe to PHY discovery drivers/net/mdio/mdio-i2c.c | 15 +++++++++------ drivers/net/phy/sfp.c | 23 +++++++++++++++-------- include/linux/mdio/mdio-i2c.h | 1 + 3 files changed, 25 insertions(+), 14 deletions(-) -- 2.51.0